Performance Benchmarks

Walrust is optimized to use less memory than Litestream. This page summarizes performance characteristics based on our benchmark suite.

Quick Results

Memory Efficiency

Walrust uses less memory than Litestream, especially when watching multiple databases:

Databases	walrust	litestream	Reduction
1	19 MB	36 MB	47%
10	19 MB	55 MB	65%
100	20 MB	160 MB	88%

Walrust’s memory usage remains ~19-20 MB regardless of database count.

Change Detection

Walrust detects SQLite changes with low latency:

Databases	p50 Latency	p99 Latency
10	< 5ms	< 15ms
100	< 10ms	< 50ms

Startup Time

Walrust starts quickly even with many databases:

Databases	Startup Time
10	< 100ms
100	< 500ms
1000	< 3s

Running Benchmarks

To run the benchmark suite locally:

# Start MinIO for S3-compatible storage
make bench-minio

# Run all benchmarks
make bench-all

# Or run individual benchmarks
make bench-compare    # Memory/CPU comparison
make bench-multidb    # Multi-database performance
make bench-realworld  # Sync latency, restore, throughput

# Stop MinIO when done
make bench-minio-stop

JSON Output

All benchmarks support JSON output for CI integration:

python bench/compare.py --use-minio --json > results.json

Learn More

• Methodology - How benchmarks are run
• Latest Results - Detailed benchmark data